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Message-ID: <202006111819.2aG1SMWK%lkp@intel.com>
Date:   Thu, 11 Jun 2020 18:48:29 +0800
From:   kernel test robot <lkp@...el.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Sagi Grimberg <sagi@...htbitslabs.com>,
        Christoph Hellwig <hch@....de>,
        "David S. Miller" <davem@...emloft.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org
Subject: Re: [PATCH] iov_iter: Move unnecessary inclusion of crypto/hash.h

Hi Herbert,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.7 next-20200611]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Herbert-Xu/iov_iter-Move-unnecessary-inclusion-of-crypto-hash-h/20200611-154742
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b29482fde649c72441d5478a4ea2c52c56d97a5e
config: c6x-allyesconfig (attached as .config)
compiler: c6x-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=c6x 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All error/warnings (new ones prefixed by >>, old ones prefixed by <<):

drivers/soc/qcom/pdr_interface.c: In function 'pdr_indack_work':
>> drivers/soc/qcom/pdr_interface.c:292:3: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration]
292 |   kfree(ind);
|   ^~~~~
drivers/soc/qcom/pdr_interface.c: In function 'pdr_indication_cb':
>> drivers/soc/qcom/pdr_interface.c:328:8: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration]
328 |  ind = kzalloc(sizeof(*ind), GFP_KERNEL);
|        ^~~~~~~
>> drivers/soc/qcom/pdr_interface.c:328:6: warning: assignment to 'struct pdr_list_node *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
328 |  ind = kzalloc(sizeof(*ind), GFP_KERNEL);
|      ^
drivers/soc/qcom/pdr_interface.c: In function 'pdr_locate_service':
>> drivers/soc/qcom/pdr_interface.c:401:7: warning: assignment to 'struct servreg_get_domain_list_resp *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
401 |  resp = kzalloc(sizeof(*resp), GFP_KERNEL);
|       ^
drivers/soc/qcom/pdr_interface.c: In function 'pdr_add_lookup':
>> drivers/soc/qcom/pdr_interface.c:526:6: warning: assignment to 'struct pdr_service *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
526 |  pds = kzalloc(sizeof(*pds), GFP_KERNEL);
|      ^
drivers/soc/qcom/pdr_interface.c: In function 'pdr_handle_alloc':
>> drivers/soc/qcom/pdr_interface.c:656:6: warning: assignment to 'struct pdr_handle *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
656 |  pdr = kzalloc(sizeof(*pdr), GFP_KERNEL);
|      ^
cc1: some warnings being treated as errors

vim +/kfree +292 drivers/soc/qcom/pdr_interface.c

fbe639b44a8275 Sibi Sankar       2020-03-12  271  
fbe639b44a8275 Sibi Sankar       2020-03-12  272  static void pdr_indack_work(struct work_struct *work)
fbe639b44a8275 Sibi Sankar       2020-03-12  273  {
fbe639b44a8275 Sibi Sankar       2020-03-12  274  	struct pdr_handle *pdr = container_of(work, struct pdr_handle,
fbe639b44a8275 Sibi Sankar       2020-03-12  275  					      indack_work);
fbe639b44a8275 Sibi Sankar       2020-03-12  276  	struct pdr_list_node *ind, *tmp;
fbe639b44a8275 Sibi Sankar       2020-03-12  277  	struct pdr_service *pds;
fbe639b44a8275 Sibi Sankar       2020-03-12  278  
fbe639b44a8275 Sibi Sankar       2020-03-12  279  	list_for_each_entry_safe(ind, tmp, &pdr->indack_list, node) {
fbe639b44a8275 Sibi Sankar       2020-03-12  280  		pds = ind->pds;
fbe639b44a8275 Sibi Sankar       2020-03-12  281  		pdr_send_indack_msg(pdr, pds, ind->transaction_id);
fbe639b44a8275 Sibi Sankar       2020-03-12  282  
fbe639b44a8275 Sibi Sankar       2020-03-12  283  		mutex_lock(&pdr->status_lock);
fbe639b44a8275 Sibi Sankar       2020-03-12  284  		pds->state = ind->curr_state;
fbe639b44a8275 Sibi Sankar       2020-03-12  285  		pdr->status(pds->state, pds->service_path, pdr->priv);
fbe639b44a8275 Sibi Sankar       2020-03-12  286  		mutex_unlock(&pdr->status_lock);
fbe639b44a8275 Sibi Sankar       2020-03-12  287  
fbe639b44a8275 Sibi Sankar       2020-03-12  288  		mutex_lock(&pdr->list_lock);
fbe639b44a8275 Sibi Sankar       2020-03-12  289  		list_del(&ind->node);
fbe639b44a8275 Sibi Sankar       2020-03-12  290  		mutex_unlock(&pdr->list_lock);
fbe639b44a8275 Sibi Sankar       2020-03-12  291  
fbe639b44a8275 Sibi Sankar       2020-03-12 @292  		kfree(ind);
fbe639b44a8275 Sibi Sankar       2020-03-12  293  	}
fbe639b44a8275 Sibi Sankar       2020-03-12  294  }
fbe639b44a8275 Sibi Sankar       2020-03-12  295  
fbe639b44a8275 Sibi Sankar       2020-03-12  296  static void pdr_indication_cb(struct qmi_handle *qmi,
fbe639b44a8275 Sibi Sankar       2020-03-12  297  			      struct sockaddr_qrtr *sq,
fbe639b44a8275 Sibi Sankar       2020-03-12  298  			      struct qmi_txn *txn, const void *data)
fbe639b44a8275 Sibi Sankar       2020-03-12  299  {
fbe639b44a8275 Sibi Sankar       2020-03-12  300  	struct pdr_handle *pdr = container_of(qmi, struct pdr_handle,
fbe639b44a8275 Sibi Sankar       2020-03-12  301  					      notifier_hdl);
fbe639b44a8275 Sibi Sankar       2020-03-12  302  	const struct servreg_state_updated_ind *ind_msg = data;
fbe639b44a8275 Sibi Sankar       2020-03-12  303  	struct pdr_list_node *ind;
fbe639b44a8275 Sibi Sankar       2020-03-12  304  	struct pdr_service *pds;
e69b3bede1b2f7 Nathan Chancellor 2020-03-16  305  	bool found = false;
fbe639b44a8275 Sibi Sankar       2020-03-12  306  
fbe639b44a8275 Sibi Sankar       2020-03-12  307  	if (!ind_msg || !ind_msg->service_path[0] ||
fbe639b44a8275 Sibi Sankar       2020-03-12  308  	    strlen(ind_msg->service_path) > SERVREG_NAME_LENGTH)
fbe639b44a8275 Sibi Sankar       2020-03-12  309  		return;
fbe639b44a8275 Sibi Sankar       2020-03-12  310  
fbe639b44a8275 Sibi Sankar       2020-03-12  311  	mutex_lock(&pdr->list_lock);
fbe639b44a8275 Sibi Sankar       2020-03-12  312  	list_for_each_entry(pds, &pdr->lookups, node) {
fbe639b44a8275 Sibi Sankar       2020-03-12  313  		if (strcmp(pds->service_path, ind_msg->service_path))
fbe639b44a8275 Sibi Sankar       2020-03-12  314  			continue;
fbe639b44a8275 Sibi Sankar       2020-03-12  315  
fbe639b44a8275 Sibi Sankar       2020-03-12  316  		found = true;
fbe639b44a8275 Sibi Sankar       2020-03-12  317  		break;
fbe639b44a8275 Sibi Sankar       2020-03-12  318  	}
fbe639b44a8275 Sibi Sankar       2020-03-12  319  	mutex_unlock(&pdr->list_lock);
fbe639b44a8275 Sibi Sankar       2020-03-12  320  
fbe639b44a8275 Sibi Sankar       2020-03-12  321  	if (!found)
fbe639b44a8275 Sibi Sankar       2020-03-12  322  		return;
fbe639b44a8275 Sibi Sankar       2020-03-12  323  
fbe639b44a8275 Sibi Sankar       2020-03-12  324  	pr_info("PDR: Indication received from %s, state: 0x%x, trans-id: %d\n",
fbe639b44a8275 Sibi Sankar       2020-03-12  325  		ind_msg->service_path, ind_msg->curr_state,
fbe639b44a8275 Sibi Sankar       2020-03-12  326  		ind_msg->transaction_id);
fbe639b44a8275 Sibi Sankar       2020-03-12  327  
fbe639b44a8275 Sibi Sankar       2020-03-12 @328  	ind = kzalloc(sizeof(*ind), GFP_KERNEL);
fbe639b44a8275 Sibi Sankar       2020-03-12  329  	if (!ind)
fbe639b44a8275 Sibi Sankar       2020-03-12  330  		return;
fbe639b44a8275 Sibi Sankar       2020-03-12  331  
fbe639b44a8275 Sibi Sankar       2020-03-12  332  	ind->transaction_id = ind_msg->transaction_id;
fbe639b44a8275 Sibi Sankar       2020-03-12  333  	ind->curr_state = ind_msg->curr_state;
fbe639b44a8275 Sibi Sankar       2020-03-12  334  	ind->pds = pds;
fbe639b44a8275 Sibi Sankar       2020-03-12  335  
fbe639b44a8275 Sibi Sankar       2020-03-12  336  	mutex_lock(&pdr->list_lock);
fbe639b44a8275 Sibi Sankar       2020-03-12  337  	list_add_tail(&ind->node, &pdr->indack_list);
fbe639b44a8275 Sibi Sankar       2020-03-12  338  	mutex_unlock(&pdr->list_lock);
fbe639b44a8275 Sibi Sankar       2020-03-12  339  
fbe639b44a8275 Sibi Sankar       2020-03-12  340  	queue_work(pdr->indack_wq, &pdr->indack_work);
fbe639b44a8275 Sibi Sankar       2020-03-12  341  }
fbe639b44a8275 Sibi Sankar       2020-03-12  342  
fbe639b44a8275 Sibi Sankar       2020-03-12  343  static struct qmi_msg_handler qmi_indication_handler[] = {
fbe639b44a8275 Sibi Sankar       2020-03-12  344  	{
fbe639b44a8275 Sibi Sankar       2020-03-12  345  		.type = QMI_INDICATION,
fbe639b44a8275 Sibi Sankar       2020-03-12  346  		.msg_id = SERVREG_STATE_UPDATED_IND_ID,
fbe639b44a8275 Sibi Sankar       2020-03-12  347  		.ei = servreg_state_updated_ind_ei,
fbe639b44a8275 Sibi Sankar       2020-03-12  348  		.decoded_size = sizeof(struct servreg_state_updated_ind),
fbe639b44a8275 Sibi Sankar       2020-03-12  349  		.fn = pdr_indication_cb,
fbe639b44a8275 Sibi Sankar       2020-03-12  350  	},
fbe639b44a8275 Sibi Sankar       2020-03-12  351  	{}
fbe639b44a8275 Sibi Sankar       2020-03-12  352  };
fbe639b44a8275 Sibi Sankar       2020-03-12  353  
fbe639b44a8275 Sibi Sankar       2020-03-12  354  static int pdr_get_domain_list(struct servreg_get_domain_list_req *req,
fbe639b44a8275 Sibi Sankar       2020-03-12  355  			       struct servreg_get_domain_list_resp *resp,
fbe639b44a8275 Sibi Sankar       2020-03-12  356  			       struct pdr_handle *pdr)
fbe639b44a8275 Sibi Sankar       2020-03-12  357  {
fbe639b44a8275 Sibi Sankar       2020-03-12  358  	struct qmi_txn txn;
fbe639b44a8275 Sibi Sankar       2020-03-12  359  	int ret;
fbe639b44a8275 Sibi Sankar       2020-03-12  360  
fbe639b44a8275 Sibi Sankar       2020-03-12  361  	ret = qmi_txn_init(&pdr->locator_hdl, &txn,
fbe639b44a8275 Sibi Sankar       2020-03-12  362  			   servreg_get_domain_list_resp_ei, resp);
fbe639b44a8275 Sibi Sankar       2020-03-12  363  	if (ret < 0)
fbe639b44a8275 Sibi Sankar       2020-03-12  364  		return ret;
fbe639b44a8275 Sibi Sankar       2020-03-12  365  
fbe639b44a8275 Sibi Sankar       2020-03-12  366  	ret = qmi_send_request(&pdr->locator_hdl,
fbe639b44a8275 Sibi Sankar       2020-03-12  367  			       &pdr->locator_addr,
fbe639b44a8275 Sibi Sankar       2020-03-12  368  			       &txn, SERVREG_GET_DOMAIN_LIST_REQ,
fbe639b44a8275 Sibi Sankar       2020-03-12  369  			       SERVREG_GET_DOMAIN_LIST_REQ_MAX_LEN,
fbe639b44a8275 Sibi Sankar       2020-03-12  370  			       servreg_get_domain_list_req_ei,
fbe639b44a8275 Sibi Sankar       2020-03-12  371  			       req);
fbe639b44a8275 Sibi Sankar       2020-03-12  372  	if (ret < 0) {
fbe639b44a8275 Sibi Sankar       2020-03-12  373  		qmi_txn_cancel(&txn);
fbe639b44a8275 Sibi Sankar       2020-03-12  374  		return ret;
fbe639b44a8275 Sibi Sankar       2020-03-12  375  	}
fbe639b44a8275 Sibi Sankar       2020-03-12  376  
fbe639b44a8275 Sibi Sankar       2020-03-12  377  	ret = qmi_txn_wait(&txn, 5 * HZ);
fbe639b44a8275 Sibi Sankar       2020-03-12  378  	if (ret < 0) {
fbe639b44a8275 Sibi Sankar       2020-03-12  379  		pr_err("PDR: %s get domain list txn wait failed: %d\n",
fbe639b44a8275 Sibi Sankar       2020-03-12  380  		       req->service_name, ret);
fbe639b44a8275 Sibi Sankar       2020-03-12  381  		return ret;
fbe639b44a8275 Sibi Sankar       2020-03-12  382  	}
fbe639b44a8275 Sibi Sankar       2020-03-12  383  
fbe639b44a8275 Sibi Sankar       2020-03-12  384  	if (resp->resp.result != QMI_RESULT_SUCCESS_V01) {
fbe639b44a8275 Sibi Sankar       2020-03-12  385  		pr_err("PDR: %s get domain list failed: 0x%x\n",
fbe639b44a8275 Sibi Sankar       2020-03-12  386  		       req->service_name, resp->resp.error);
fbe639b44a8275 Sibi Sankar       2020-03-12  387  		return -EREMOTEIO;
fbe639b44a8275 Sibi Sankar       2020-03-12  388  	}
fbe639b44a8275 Sibi Sankar       2020-03-12  389  
fbe639b44a8275 Sibi Sankar       2020-03-12  390  	return 0;
fbe639b44a8275 Sibi Sankar       2020-03-12  391  }
fbe639b44a8275 Sibi Sankar       2020-03-12  392  
fbe639b44a8275 Sibi Sankar       2020-03-12  393  static int pdr_locate_service(struct pdr_handle *pdr, struct pdr_service *pds)
fbe639b44a8275 Sibi Sankar       2020-03-12  394  {
fbe639b44a8275 Sibi Sankar       2020-03-12  395  	struct servreg_get_domain_list_resp *resp;
fbe639b44a8275 Sibi Sankar       2020-03-12  396  	struct servreg_get_domain_list_req req;
fbe639b44a8275 Sibi Sankar       2020-03-12  397  	struct servreg_location_entry *entry;
fbe639b44a8275 Sibi Sankar       2020-03-12  398  	int domains_read = 0;
fbe639b44a8275 Sibi Sankar       2020-03-12  399  	int ret, i;
fbe639b44a8275 Sibi Sankar       2020-03-12  400  
fbe639b44a8275 Sibi Sankar       2020-03-12 @401  	resp = kzalloc(sizeof(*resp), GFP_KERNEL);
fbe639b44a8275 Sibi Sankar       2020-03-12  402  	if (!resp)
fbe639b44a8275 Sibi Sankar       2020-03-12  403  		return -ENOMEM;
fbe639b44a8275 Sibi Sankar       2020-03-12  404  
fbe639b44a8275 Sibi Sankar       2020-03-12  405  	/* Prepare req message */
fbe639b44a8275 Sibi Sankar       2020-03-12  406  	strcpy(req.service_name, pds->service_name);
fbe639b44a8275 Sibi Sankar       2020-03-12  407  	req.domain_offset_valid = true;
fbe639b44a8275 Sibi Sankar       2020-03-12  408  	req.domain_offset = 0;
fbe639b44a8275 Sibi Sankar       2020-03-12  409  
fbe639b44a8275 Sibi Sankar       2020-03-12  410  	do {
fbe639b44a8275 Sibi Sankar       2020-03-12  411  		req.domain_offset = domains_read;
fbe639b44a8275 Sibi Sankar       2020-03-12  412  		ret = pdr_get_domain_list(&req, resp, pdr);
fbe639b44a8275 Sibi Sankar       2020-03-12  413  		if (ret < 0)
fbe639b44a8275 Sibi Sankar       2020-03-12  414  			goto out;
fbe639b44a8275 Sibi Sankar       2020-03-12  415  
fbe639b44a8275 Sibi Sankar       2020-03-12  416  		for (i = domains_read; i < resp->domain_list_len; i++) {
fbe639b44a8275 Sibi Sankar       2020-03-12  417  			entry = &resp->domain_list[i];
fbe639b44a8275 Sibi Sankar       2020-03-12  418  
fbe639b44a8275 Sibi Sankar       2020-03-12  419  			if (strnlen(entry->name, sizeof(entry->name)) == sizeof(entry->name))
fbe639b44a8275 Sibi Sankar       2020-03-12  420  				continue;
fbe639b44a8275 Sibi Sankar       2020-03-12  421  
fbe639b44a8275 Sibi Sankar       2020-03-12  422  			if (!strcmp(entry->name, pds->service_path)) {
fbe639b44a8275 Sibi Sankar       2020-03-12  423  				pds->service_data_valid = entry->service_data_valid;
fbe639b44a8275 Sibi Sankar       2020-03-12  424  				pds->service_data = entry->service_data;
fbe639b44a8275 Sibi Sankar       2020-03-12  425  				pds->instance = entry->instance;
fbe639b44a8275 Sibi Sankar       2020-03-12  426  				goto out;
fbe639b44a8275 Sibi Sankar       2020-03-12  427  			}
fbe639b44a8275 Sibi Sankar       2020-03-12  428  		}
fbe639b44a8275 Sibi Sankar       2020-03-12  429  
fbe639b44a8275 Sibi Sankar       2020-03-12  430  		/* Update ret to indicate that the service is not yet found */
fbe639b44a8275 Sibi Sankar       2020-03-12  431  		ret = -ENXIO;
fbe639b44a8275 Sibi Sankar       2020-03-12  432  
fbe639b44a8275 Sibi Sankar       2020-03-12  433  		/* Always read total_domains from the response msg */
fbe639b44a8275 Sibi Sankar       2020-03-12  434  		if (resp->domain_list_len > resp->total_domains)
fbe639b44a8275 Sibi Sankar       2020-03-12  435  			resp->domain_list_len = resp->total_domains;
fbe639b44a8275 Sibi Sankar       2020-03-12  436  
fbe639b44a8275 Sibi Sankar       2020-03-12  437  		domains_read += resp->domain_list_len;
fbe639b44a8275 Sibi Sankar       2020-03-12  438  	} while (domains_read < resp->total_domains);
fbe639b44a8275 Sibi Sankar       2020-03-12  439  out:
fbe639b44a8275 Sibi Sankar       2020-03-12  440  	kfree(resp);
fbe639b44a8275 Sibi Sankar       2020-03-12  441  	return ret;
fbe639b44a8275 Sibi Sankar       2020-03-12  442  }
fbe639b44a8275 Sibi Sankar       2020-03-12  443  

:::::: The code at line 292 was first introduced by commit
:::::: fbe639b44a82755d639df1c5d147c93f02ac5a0f soc: qcom: Introduce Protection Domain Restart helpers

:::::: TO: Sibi Sankar <sibis@...eaurora.org>
:::::: CC: Bjorn Andersson <bjorn.andersson@...aro.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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